Abstract
An attempt has been made in this study to analyze and predict the response of machine foundations under operating conditions subjected to accidental blast loads. Three cases of machine foundations subjected to combined sinusoidal and blast loads have been analyzed, namely- i) response of soil remains elastic during the blast, and maximum displacement also occurs in the elastic state, ii) blast takes place in elastic state but maximum response is obtained in plastic state, and iii) during the blast, the state of soil-foundation system changes from elastic to plastic and the maximum response is obtained in plastic state. Closed form solutions have been obtained for predicting the displacement-time history of machine foundations for all these three cases. Parametric study has also been carried out to understand the influence of parameters like mass of machine and the foundation, stiffness of soil, damping ratio, frequency ratio, and the ultimate bearing resistance of soil on displacement-time history of machine foundations. Results of parametric study would be helpful in designing the machine foundations in the presence of combined harmonic and blast loads.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
